Method for producing 1-unsubstituted pyrazolo[3,4-b]pyridine ketones
申请人:E. R. Squibb & Sons, Inc.
公开号:US03987051A1
公开(公告)日:1976-10-19
A new process for the production of pyrazolo-[3,4-b]pyridine ketones which are unsubstituted in the 1-position comprises reacting a 1-furanylmethylpyrazolo[3,4-b]pyridine ketone with an inorganic strong mineral acid like sulfuric acid, phosphoric acid or polyphosphoric acid.